| MW | Molecular Weight |
|---|---|
| MW | megohm |
| mW | milliohm |
| MW | Mallory-Weiss [syndrome]; mean weight; megawatt; microwave; Minot-von Willebrand [syndrome]; molecular weight |
| mW | milliwatt |
| mWb | milliweber |
| MWD | microwave diathermy; molecular weight distribution |
| MWP | mean wedge pressure |
| MWS | Marden-Walker syndrome; Moersch-Woltman syndrome |
| MWT | myocardial wall thickness |